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<field name="value">Oort, Frans J.</field>
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<field name="value">Stebbins, Glenn T.</field>
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<field name="value">Cubo Delgado, Esther</field>
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<field name="value">In order to better understand the similarities and differences in the motor behaviour of different groups of patients, their scores on the Motor Examination section of the Unified Parkinson's Disease Rating Scale (UPDRS) were analysed simultaneously. The three groups consisted, respectively, of patients with Parkinson's disease (PD) on medication, patients with Parkinson's disease withdrawn from anti-parkinsonian medication for at least 12 hours, and patients diagnosed with a specific Parkinsonism syndrome: Progressive Supranuclear Palsy (PSP).</field>
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<field name="value">This research was supported by the Parkinson's Disease Foundation. The first two authors (PMK, FJO) were partially supported by a grant from the Netherlands Organisation of Scientific Research (NWO grant 575-30-005).</field>
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<field name="value">BMC Medical Research Methodology. 2006, V. 6, n. 1</field>
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